An overflow at the Russian River treatment plant near Guerneville sent untreated wastewater into the lower river during Tuesday’s storms. Officials have posted warnings and asked people to avoid the water while assessments continue.

Flood warnings remain near Mark West Creek in Sonoma even as the Bay Area dries out. Hazardous surf and a late-week chill are on the way.

A Monday storm will bring the heaviest rain to the North Bay, with up to 4 inches possible in mountain terrain and coastal advisories in effect.

Rain returns Wednesday through the weekend while king tides Wed–Sun raise coastal flood risk. A cold advisory hits early Tuesday and winds may pick up late week.

NOAA's 10‑foot sea‑level visualization shows neighborhoods from the Bay Area to Florida in potential inundation zones, and new research warns thousands of hazardous sites could flood by 2100.

Analysis shows the Forest Service treated under 1.7M acres through Sept.—well below recent averages. Senators and firefighters are demanding staffing and mitigation plans.

A shallow 3.7-magnitude quake shook the Geysers area before dawn, prompting felt reports but no immediate damage reports. Local seismologists revised the initial reading to 3.7.

EPA's proposed rewrite of WOTUS would narrow which wetlands the Clean Water Act protects, prompting warnings from conservationists and praise from farm groups.